[v2] net: can: Use device_get_match_data()
Commit Message
Use preferred device_get_match_data() instead of of_match_device() to
get the driver match data. With this, adjust the includes to explicitly
include the correct headers.
Error checking for matching and match data was not necessary as matching
is always successful if we're already in probe and the match tables always
have data pointers.
Signed-off-by: Rob Herring <robh@kernel.org>
---
v2:
- Drop calling "platform_get_device_id(pdev)->driver_data" in c_can
and flexcan as device_get_match_data() already did that. The logic
was also wrong and would have resulted in returning -ENODEV.
- Drop initializing devtype in xilinx_can
---
drivers/net/can/c_can/c_can_platform.c | 13 ++-----------
drivers/net/can/flexcan/flexcan-core.c | 12 ++----------
drivers/net/can/mscan/mpc5xxx_can.c | 8 ++++----
drivers/net/can/xilinx_can.c | 9 +++------
4 files changed, 11 insertions(+), 31 deletions(-)
Comments
On Wed, Nov 22, 2023 at 11:01:39AM -0700, Rob Herring wrote:
> Use preferred device_get_match_data() instead of of_match_device() to
> get the driver match data. With this, adjust the includes to explicitly
> include the correct headers.
>
> Error checking for matching and match data was not necessary as matching
> is always successful if we're already in probe and the match tables always
> have data pointers.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
> v2:
> - Drop calling "platform_get_device_id(pdev)->driver_data" in c_can
> and flexcan as device_get_match_data() already did that. The logic
> was also wrong and would have resulted in returning -ENODEV.
> - Drop initializing devtype in xilinx_can
Thanks for the updates.
Reviewed-by: Simon Horman <horms@kernel.org>
@@ -30,9 +30,9 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+#include <linux/property.h>
#include <linux/clk.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
@@ -259,22 +259,13 @@ static int c_can_plat_probe(struct platform_device *pdev)
void __iomem *addr;
struct net_device *dev;
struct c_can_priv *priv;
- const struct of_device_id *match;
struct resource *mem;
int irq;
struct clk *clk;
const struct c_can_driver_data *drvdata;
struct device_node *np = pdev->dev.of_node;
- match = of_match_device(c_can_of_table, &pdev->dev);
- if (match) {
- drvdata = match->data;
- } else if (pdev->id_entry->driver_data) {
- drvdata = (struct c_can_driver_data *)
- platform_get_device_id(pdev)->driver_data;
- } else {
- return -ENODEV;
- }
+ drvdata = device_get_match_data(&pdev->dev);
/* get the appropriate clk */
clk = devm_clk_get(&pdev->dev, NULL);
@@ -23,11 +23,11 @@
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/can/platform/flexcan.h>
#include <linux/pm_runtime.h>
+#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
@@ -2034,7 +2034,6 @@ MODULE_DEVICE_TABLE(platform, flexcan_id_table);
static int flexcan_probe(struct platform_device *pdev)
{
- const struct of_device_id *of_id;
const struct flexcan_devtype_data *devtype_data;
struct net_device *dev;
struct flexcan_priv *priv;
@@ -2090,14 +2089,7 @@ static int flexcan_probe(struct platform_device *pdev)
if (IS_ERR(regs))
return PTR_ERR(regs);
- of_id = of_match_device(flexcan_of_match, &pdev->dev);
- if (of_id)
- devtype_data = of_id->data;
- else if (platform_get_device_id(pdev)->driver_data)
- devtype_data = (struct flexcan_devtype_data *)
- platform_get_device_id(pdev)->driver_data;
- else
- return -ENODEV;
+ devtype_data = device_get_match_data(&pdev->dev);
if ((devtype_data->quirks & FLEXCAN_QUIRK_SUPPORT_FD) &&
!((devtype_data->quirks &
@@ -12,8 +12,10 @@
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/netdevice.h>
#include <linux/can/dev.h>
+#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
@@ -290,7 +292,7 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev)
int irq, mscan_clksrc = 0;
int err = -ENOMEM;
- data = of_device_get_match_data(&ofdev->dev);
+ data = device_get_match_data(&ofdev->dev);
if (!data)
return -EINVAL;
@@ -351,13 +353,11 @@ static int mpc5xxx_can_probe(struct platform_device *ofdev)
static void mpc5xxx_can_remove(struct platform_device *ofdev)
{
- const struct of_device_id *match;
const struct mpc5xxx_can_data *data;
struct net_device *dev = platform_get_drvdata(ofdev);
struct mscan_priv *priv = netdev_priv(dev);
- match = of_match_device(mpc5xxx_can_table, &ofdev->dev);
- data = match ? match->data : NULL;
+ data = device_get_match_data(&ofdev->dev);
unregister_mscandev(dev);
if (data && data->put_clock)
@@ -20,8 +20,8 @@
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/string.h>
@@ -1726,8 +1726,7 @@ static int xcan_probe(struct platform_device *pdev)
struct net_device *ndev;
struct xcan_priv *priv;
struct phy *transceiver;
- const struct of_device_id *of_id;
- const struct xcan_devtype_data *devtype = &xcan_axi_data;
+ const struct xcan_devtype_data *devtype;
void __iomem *addr;
int ret;
int rx_max, tx_max;
@@ -1741,9 +1740,7 @@ static int xcan_probe(struct platform_device *pdev)
goto err;
}
- of_id = of_match_device(xcan_of_match, &pdev->dev);
- if (of_id && of_id->data)
- devtype = of_id->data;
+ devtype = device_get_match_data(&pdev->dev);
hw_tx_max_property = devtype->flags & XCAN_FLAG_TX_MAILBOXES ?
"tx-mailbox-count" : "tx-fifo-depth";